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公开(公告)号：US10386788B2
公开(公告)日：2019-08-20
申请号：US15342329
申请日：2016-11-03
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork , John Eric Linstadt
Abstract: An infrared imaging system includes a phase grating overlying a two-dimensional array of thermally sensitive pixels. The phase grating comprises a two-dimensional array of identical subgratings that define a system of Cartesian coordinates. The subgrating and pixel arrays are sized and oriented such that the pixels are evenly distributed with respect to the row and column intersections of the subgratings. The location of each pixel thus maps to a unique location beneath a virtual archetypical subgrating.
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公开(公告)号：US20190191993A1
公开(公告)日：2019-06-27
申请号：US16233950
申请日：2018-12-27
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork
IPC: A61B3/113 , G02B5/18 , G02B27/42 , G06T3/40 , A61B3/15 , H04N5/33 , G06K9/00 , H04N7/18 , H04N5/225 , A61B3/14
CPC classification number: A61B3/113 , A61B3/14 , A61B3/145 , A61B3/152 , G02B5/1871 , G02B5/1876 , G02B27/4205 , G06K9/00604 , G06T3/4053 , H04N5/213 , H04N5/2253 , H04N5/2256 , H04N5/23241 , H04N5/23245 , H04N5/33 , H04N5/332 , H04N7/181 , H04N9/045 , H04N9/097 , H04N2209/048
Abstract: A sensing device with an odd-symmetry grating projects near-field spatial modulations onto an array of closely spaced pixels. Due to physical properties of the grating, the spatial modulations are in focus for a range of wavelengths and spacings. The spatial modulations are captured by the array, and photographs and other image information can be extracted from the resultant data. Pixels responsive to infrared light can be used to make thermal imaging devices and other types of thermal sensors. Some sensors are well adapted for tracking eye movements, and others for imaging barcodes and like binary images. In the latter case, the known binary property of the expected images can be used to simplify the process of extracting image data.
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公开(公告)号：US20180329185A1
公开(公告)日：2018-11-15
申请号：US15776386
申请日：2016-11-03
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork , John Eric Lindstadt
CPC classification number: G02B13/14 , G02B5/1871 , G03H1/0465 , G03H2001/045 , H04N5/2254
Abstract: An imaging system includes a phase grating overlying a two-dimensional array of pixels, which may be thermally sensitive pixels for use in infrared imaging. The phase grating comprises a two-dimensional array of identical subgratings that define a system of Cartesian coordinates. The subgrating and pixel arrays are sized and oriented such that the pixels are evenly distributed with respect to the row and column intersections of the subgratings. The location of each pixel thus maps to a unique location beneath a virtual archetypical subgrating. Portions of the phase grating extend beyond the edges of the pixels array to interference pattern in support of Fourier-domain imaging.
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公开(公告)号：US20180299604A1
公开(公告)日：2018-10-18
申请号：US15953597
申请日：2018-04-16
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork
Abstract: Image-sensing devices include odd-symmetry gratings that cast interference patterns over a photodetector array. Grating features offer considerable insensitivity to the wavelength of incident light, and also to the manufactured distance between the grating and the photodetector array. Photographs and other image information can be extracted from interference patterns captured by the photodetector array. Images can be captured without a lens, and cameras can be made smaller than those that are reliant on lenses and ray-optical focusing.
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Patent Agency Ranking
公开(公告)号：US20180197909A1
公开(公告)日：2018-07-12
申请号：US15861373
申请日：2018-01-03
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork
IPC: H01L27/146 , G02B5/18
CPC classification number: H01L27/14625 , G02B5/1819 , G02B5/1842 , H01L27/1462 , H01L27/14623 , H01L27/14627 , H01L27/14629
Abstract: An array of diffraction-pattern generators employ phase anti-symmetric gratings to projects near-field spatial modulations onto a closely spaced array of photoelements. Each generator in the array of generators produces point-spread functions with spatial frequencies and orientations of interest. The generators are arranged in an irregular mosaic with little or no short-range repetition. Diverse generators are shaped and placed with some irregularity to reduce or eliminate spatially periodic replication of ambiguities to facilitate imaging of nearby scenes.
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公开(公告)号：US09971078B2
公开(公告)日：2018-05-15
申请号：US14770080
申请日：2014-03-03
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork
CPC classification number: G02B5/3083 , G02B5/1842 , G02B5/1871 , G02B27/4205 , G02B27/46 , H01L27/14625 , H01L27/14685 , H04N5/23232 , H04N5/335
Abstract: Image-sensing devices include odd-symmetry gratings that cast interference patterns over a photodetector array. Grating features offer considerable insensitivity to the wavelength of incident light, and also to the manufactured distance between the grating and the photodetector array. Photographs and other image information can be extracted from interference patterns captured by the photodetector array. Images can be captured without a lens, and cameras can be made smaller than those that are reliant on lenses and ray-optical focusing.
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公开(公告)号：US09746593B2
公开(公告)日：2017-08-29
申请号：US14458179
申请日：2014-08-12
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork , Jay A. Endsley
CPC classification number: G02B5/1842 , H04N5/2254
Abstract: Described are imaging devices that employ patchworks of diffractive structures as focusing optics. Each diffractive structure best focuses light over a relatively narrow cone of incident angles, and provides suboptimal focusing for incident angles outside that cone. Different diffractive structures best focus different angular ranges, with the patchwork thus providing an overall focusable response for the relatively broad range of angles required to image a scene. Images can be captured without a lens, and cameras can be made smaller than those that are reliant on lenses and ray-optical focusing.
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公开(公告)号：US20170060242A1
公开(公告)日：2017-03-02
申请号：US15234141
申请日：2016-08-11
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork , Thomas Vogelsang
CPC classification number: G06F3/016 , G02B5/1842 , G02B5/1871 , G06F1/163 , G06F3/017 , G06F3/0421 , G06F3/0428 , H04N5/247
Abstract: A user interface includes both a touchscreen for tactile input and one or more lensless optical sensors for sensing additional, remote gestures. Users can interact with the user interface in a volume of space near the display, and are thus not constrained to the relatively small area of the touchscreen. Remote hand or face gestures can be used to turn on or otherwise alter the tactile user interface. Shared user interfaces can operate without touch, and thus avoid cross-contamination of e.g. viruses and bacteria.
Abstract translation: 用户界面包括用于触觉输入的触摸屏和用于感测附加的远程手势的一个或多个无镜头光学传感器。 用户可以在显示器附近的空间体积中与用户界面交互，因此不被限制到触摸屏的相对较小的区域。 遥控手或脸部手势可用于打开或以其他方式更改触觉用户界面。 共享的用户界面可以在没有触摸的情况下操作，并且因此避免例如交叉污染 病毒和细菌。
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39.发明申请Phase Gratings with Odd Symmetry for High-Resolution Lensed and Lensless Optical Sensing 有权具有奇数对称性的相位光栅用于高分辨率光纤和无镜头光学感测公开(公告)号：US20150373265A1
公开(公告)日：2015-12-24
申请号：US14824997
申请日：2015-08-12
Applicant: Rambus Inc.
Inventor： Patrick R. Gill , David G. Stork
CPC classification number: G02B5/1842 , G02B5/1871 , G02B27/0037 , G02B27/0068 , G02B27/0087 , H04N5/225 , H04N5/2254 , H04N5/23232 , H04N5/23235 , H04N5/23245 , H04N5/3696 , H04N9/045
Abstract: A sensing device with an odd-symmetry grating projects near-field spatial modulations onto a closely spaced photodetector array. The grating includes upper and lower features that define boundaries of odd symmetry. The features include upper and lower segments of various widths on opposite sides of each boundary, the upper segments at a height sufficient to induce one half wavelength of retardation in the band of interest relative to the lower segments. The resultant interference produces the spatial modulations for capture by the array. Photographs and other image information can be extracted from the captured data.
Abstract translation: 具有奇对称光栅的感测装置将近场空间调制投影到紧密间隔的光电检测器阵列上。 光栅包括限定奇对称边界的上部和下部特征。 这些特征包括在每个边界的相对侧上具有各种宽度的上部和下部部分，上部部分的高度足以相对于下部部分在感兴趣的带中引起一半的延迟波长。 所产生的干扰产生用于由阵列捕获的空间调制。 可以从捕获的数据中提取照片和其他图像信息。
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